John s



(No Model.)

s. HALL. LUBRICANT 0UP.

N0.'376,952. Patented Jan. 24, 1888.

01;.s. mm

- N. PETER; mwmo m, Wahlngton. u, c.

A UNITED STATES PATE T OFF CE." 1" a l JoHN s. HALL, or NEW YORK, N. Y.

LuBmoANT-ouP.

SPECIFICATION forming art of Letters Patent No. 376,952, dated January24, 1888.

Application filed March 23, 1886. Renewed June 9, 1887. Serial No.246,734.

To aZZ whom, it vrtay concern:

Be it known that I, JOHN S. HALL, of the city, county, and State of NewYork, and a cltizen of the United States, have invented certaln new anduseful Improvements in Lubricant-Cups, (for which Letters Patenthavebeen granted to me in Great Britain, No. 4,017,

' employed to feedthe lubricant tomachinery dated March 23, 1886,) ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification.

My invention relates, to an oil or grease cup journals and bearings; andit consists in the devlces and their combinations, hereinafterparticularly described, and as more at length recited in the claims.

Figure lis a vertical central longitudinal sectional view of 'alubricant-cup containing Ais the cup for holding the lubricant, and 1susually in the. form-of a cylinder with a closed bottom, through andfrom'which ex tends the discharge-passage A, by which the 7 cup may beseated in the bearing to'be lubri- 1 cated, andthrough which thelubricant passes to the journal. A cap, B, closes the top of the Cup. 1

O isa rod, the lower end of which forms or carries a valve, 0 whichworks to aseat, a, on thecup end of the discharge-passage A. This rodreaches longitudinally through the cup and .passes through a tube, b,fixed or formed centrally of thecap B, and its upper end is fixedlyseatedin the cap 0', through which it passes, said-cap being interiorlythreaded and working upon the exterior threaded surface of the tube 1).An air-inlet is provided at c,

D is a piston, which is conformable in-outline to the interior of thecup, and has a trans verse opening at its center, at-d, through whichthe valve-rod 0 passes, The piston is free to move longitudinally of thecup,,and is operofa depth equal to the length of theextended Fig. 3 isatopview with .'(No model.) Patented in England March 23,

ated to be driven or pressed to the'lower end of the cup by the springD,and is prevented from escaping from the lowerend of the rod by the pinorcollarc thereon, as shown. Near theupper end of the valve rod,,w ithinthe cup, is thepin 0, extending transversely of the rod, as shown. Thewall of the central opening, (1, in the piston has the annular recess01, 1

6o ends of the pin 0 andthe upper face of the I piston has thetransverse slot d,leading to said annular recess, and adapted toallowsaid pin c to passto said recess. f

c It is evident that when the cup is freshly filled with grease and itis desiredtosea't the piston upon the top of such contained grease andto replace the cap B, the piston, which, with its spring and thevalve-rod,has been removed from the cup with the cap, in order "that thecharge .of grease may be introduced,

may be slid to the upper end'of the rod, the spring'being collapsedbetween the pistonan'd the cap B, and the piston be locked in thisposition on the rod by, passing the pin 0 through the slot d into therecess d and. then giving the piston ahalf-turn on the rod, so as toseat the pin c in said recess. The cap B and the spring-piston may thenbe seated,the

piston being introduced into the cup without the liability of the pistontopress upon-the grease inTthe'cupa When the cap Bgis sccured in place,a half-turn of the valve-rod, which-may be effected by its attached capQ, Q

will bring thepin c coincident to the 'slot'd when the spring D willoperate to release the piston from the pin'and press the pistonupon I.the grease, whereby,when the valve 0 is opened,

the grease will be forced outthroughthe discharge-passage A. 0; j

E is a leaf-springcomposed.ofthe shank e, j v,

the ring-like body e, and the tongue e,o n'the pper face of which istheprojectione ,"This i is v s, may be stampedxand struck complete inone piece from a suitableg 5 piece of steel. 1 This springis-mountedonthe top of the cap B by means of a rivet passing through theshank e, and the ring-like body e encircles the tube b, so that thetongue e,bear- 1 ing the projection a is broughtinnder-theloo perimeterof the cap 0, as shown. Thisun- 'der side of the perimeter'of the cap 0'has the I V radial ratchet-teeth c", and the projection e is adapted toengage the notches between these teeth, thus constituting a spring-pawl.The cap 0 may thus be held in any desired position on the tube 2), andat the same time the spring-pawl permits the rotation of the cap atpleasure. The turning of the cap 0', which I term the regulating-cap, upor down on the tube 12 operates to open or close more or less the valve0, and the described spring thus afiords an effective means for holdingthe valve fixedly open to any desired extent,0r firmly closed. Theengagement of the ring-like body 6 of the spring with the exterior ofthe tubeb prevents the shifting or turning of the entire spring on itsrivet-fastening to the cap B.

With the screw-cap G, I connect an indicator, whereby the position ofthe said cap will indicate to the eye when the valve is closed down toits seat, and also to what extentmhe valve is opened.

To the cap 0, I attach a pointeryO preferably by means of a disk, 0which is pressed into engagement with the top of the cap by a nut, c,turning on the extremity of the valverod, the said disk carrying thepointer 0 The pointer is thus given a lateral adjustable connection tothe valve-rod and cap 0'. I prefer to put the indicator-scale shown inFigs. 1 and 3, and which may be figures, letters, or other characters,onto the upper face of the cap B of the oil-cup,with the pointer Greaching down from the disk 0 to near the top of cap B. It is alsodesirable to arrange the scale and pointer so that when the pointerpoints to zero of the scale the valve will be closed, and as the cap 0is turned to open the valve successive characters on the scale will bepointed to by the pointer moving with the cap. Thus the indication ofthe extent of the opening of the valve and the act of opening the valveare both efiected by the cap 0, and the operator is enabled to readilyset the valve for any desired rate of outflow of the grease from thecup. Of course the indicator-scale may be put on the cap 0, and anadjustable pointer fixed on the cap B, which would be the equivalent ofthe arrangement described.

In the devices described, when any wear takes place of the valve on thevalve-seat, the pointer may be readjusted to the cap C, so that when thevalve is closed the pointer will indicate zero or the other propercharacter on the scale.

WVhat I claim as my invention, and desire to secure by Letters Patent,is-- i 1. In a lubricant-cup having the lubricantholder and itsdischarge-passage A, and cover B, Valve-rod 0, piston D, and itsoperatingspring D. the combination of the pin 0 in the valverod, saidpiston D provided with the annular groove d and slot (1 in its centralopening, as and for the purpose specified.

2. In a lubricant-cup having the lubricantholder A and itsdischargepassage A, cover B, and its central exteriorly-threaded tube,b, and valve-rod O, and its hollow interiorlythreaded cap 0, thecombination therewith 0f the leaf-spring E, carrying projection 0adapted to engage the ratchet 0" on said cap, as and for the purpose setforth.

JOHN S. HALL.

\Vitnesses:

. A. G. N. VERMILYA,

A. S. FITCH.

